[LLVMdev] Beginner question: request guidance on how to trace 'make check' failure in SVN build

[Shailesh Khandekar]

Greetings everybody,

I'm at beginner level with LLVM and tried to build the sources from
SVN revision 54920 on Fedora 9 (kernel 2.6.25-14.fc9.x86_64) running
on Intel Q6600 @ 2.40GHz processor. LLVM build using 'make -j 4' was
successful. However, during 'make check', a test case failed. The
relevant snippets appear below. Can someone please point me to any
links on how the relevant error can be further traced? I am interested
in contributing to the testing efforts for LLVM on Linux and eager to
learn the essential tools for the same. I'm highly impressed with LLVM
so far.

'make check' output
-------------------
Test Run By arthay on Mon Aug 18 22:46:07 2008
Native configuration is x86_64-unknown-linux-gnu

		===  tests ===

Schedule of variations:
    unix

Running target unix
Using /home/arthay/tools/share/dejagnu/baseboards/unix.exp as board
description file for target.
Using /home/arthay/tools/share/dejagnu/config/unix.exp as generic
interface file for target.
....
....
Running /home/arthay/llvm-work/llvm/test/Transforms/LoopSimplify/dg.exp ...
Running /home/arthay/llvm-work/llvm/test/Transforms/LoopStrengthReduce/dg.exp
...
FAIL: /home/arthay/llvm-work/llvm/test/Transforms/LoopStrengthReduce/2008-08-14-ShadowIV.ll
Failed with exit(1) at line 1
while running: llvm-as <
/home/arthay/llvm-work/llvm/test/Transforms/LoopStrengthReduce/2008-08-14-ShadowIV.ll
| opt -loop-reduce | llvm-dis | grep "phi double" | count 1
count: expected 1 lines and got 0.
child process exited abnormally
Running /home/arthay/llvm-work/llvm/test/Transforms/LoopUnroll/dg.exp ...
....
....
		===  Summary ===

# of expected passes		2661
# of unexpected failures	1
# of expected failures		11
make[1]: Leaving directory `/home/arthay/llvm-work/llvm-objects/test'
------------------

Additional Details
------------------
LLVM was configured with:
$../llvm/configure --prefix=/home/arthay/app


I'm using tcl 8.4.18, dejagnu 1.4.4, expect-5.43, gmp 4.2.2, mpfr
2.3.0. On a sidenote, gcc 4.3.1  was successfully bootstrapped and
tested using 'make check'. The gcc 4.3.1 testsuite needed autogen.
Autogen needed guile which itself depended on libtool. Thus, I used
autogen 5.9.5, guile 1.8.5 and libtool 1.5.26.  Earlier, I used the
default gcc in Fedora 9 i.e. gcc version 4.3.0 20080428 (Red Hat
4.3.0-8), to bootstrap gcc 4.3.1 and build these tools. The PATH and
LD_LIBRARY_PATH environment variables are set properly.

$ gcc -v
Using built-in specs.
Target: x86_64-redhat-linux
Configured with: ../gcc-4.3.1/configure --prefix=/home/arthay/tools
--enable-bootstrap --enable-shared --enable-threads=posix
--enable-checking=release --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-languages=c,c++
--with-cpu=generic --build=x86_64-redhat-linux
--with-gmp=/home/arthay/tools --with-mpfr=/home/arthay/tools
--disable-multilib
Thread model: posix
gcc version 4.3.1 (GCC)


Thanks in advance.

Best regards,

Shailesh S. Khandekar,
Pune, India.